she had dreams of bright lights and big cities. but what she found was the reality wasn't nearly as glamorous as she envisioned. when she couldn't pay the rent she found work with an escort agency. easy money paid bills but ultimately made her life harder. after only a short time as an escort her family says she had an arrest record and a drug habit. i've watched them. you guys are very close. were you close with shanon like that as well? >> yes, we were close. if one of us were missing my sister would do the same thing right now to try to find her. >> her family kept urging us to please search, to please take the dogs. it was about to get cold. >> reporter: when police finally took search dogs out to look for shanon gilbert a month after she disappeared they made a shocking discovery. >> missing persons unit called us out on saturday to follow up on an investigation on a missing person. i saw the skeletal remains of a body. >> reporter: over the next couple of days, police would find three more sets of remains. >>> coming up, the